ecs1030: added new current sensor (works on atmega328 but on Galileo not accurate, need calibration and circuit)

Signed-off-by: Kiveisha Yevgeniy <yevgeniy.kiveisha@intel.com>
This commit is contained in:
Kiveisha Yevgeniy 2014-08-25 23:25:11 +00:00
parent 59a66b41bb
commit 5c4de1b926
7 changed files with 286 additions and 0 deletions

@ -28,6 +28,7 @@ add_executable (nrf8001-broadcast-example nrf8001_broadcast.cxx)
add_executable (nrf8001-helloworld-example nrf8001_helloworld.cxx)
add_executable (lpd8806-example lpd8806-example.cxx)
add_executable (mlx90614-example mlx90614-example.cxx)
add_executable (ecs1030-example ecs1030-example.cxx)
include_directories (${PROJECT_SOURCE_DIR}/src/hmc5883l)
include_directories (${PROJECT_SOURCE_DIR}/src/grove)
@ -53,6 +54,7 @@ include_directories (${PROJECT_SOURCE_DIR}/src/max5487)
include_directories (${PROJECT_SOURCE_DIR}/src/nrf8001)
include_directories (${PROJECT_SOURCE_DIR}/src/lpd8806)
include_directories (${PROJECT_SOURCE_DIR}/src/mlx90614)
include_directories (${PROJECT_SOURCE_DIR}/src/ecs1030)
target_link_libraries (compass hmc5883l ${CMAKE_THREAD_LIBS_INIT})
target_link_libraries (groveled grove ${CMAKE_THREAD_LIBS_INIT})
@ -84,3 +86,4 @@ target_link_libraries (nrf8001-broadcast-example nrf8001 ${CMAKE_THREAD_LIBS_INI
target_link_libraries (nrf8001-helloworld-example nrf8001 ${CMAKE_THREAD_LIBS_INIT})
target_link_libraries (lpd8806-example lpd8806 ${CMAKE_THREAD_LIBS_INIT})
target_link_libraries (mlx90614-example mlx90614 ${CMAKE_THREAD_LIBS_INIT})
target_link_libraries (ecs1030-example ecs1030 ${CMAKE_THREAD_LIBS_INIT})

@ -0,0 +1,61 @@
/*
* Author: Yevgeniy Kiveisha <yevgeniy.kiveisha@intel.com>
* Copyright (c) 2014 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <iostream>
#include <signal.h>
#include <stdlib.h>
#include "ecs1030.h"
int is_running = 0;
upm::ECS1030 *sensor = NULL;
void
sig_handler(int signo)
{
printf("got signal\n");
if (signo == SIGINT) {
is_running = 1;
}
}
//! [Interesting]
int
main(int argc, char **argv)
{
sensor = new upm::ECS1030(0);
signal(SIGINT, sig_handler);
while (!is_running) {
std::cout << "I = " << sensor->getCurrency_A () << ", Power = " << sensor->getPower_A () << std::endl;
std::cout << "I = " << sensor->getCurrency_B () << ", Power = " << sensor->getPower_B () << std::endl;
}
std::cout << "exiting application" << std::endl;
delete sensor;
return 0;
}
//! [Interesting]

@ -0,0 +1,5 @@
set (libname "ecs1030")
set (libdescription "Non-invasive current sensor")
set (module_src ${libname}.cxx)
set (module_h ${libname}.h)
upm_module_init()

101
src/ecs1030/ecs1030.cxx Normal file

@ -0,0 +1,101 @@
/*
* Author: Yevgeniy Kiveisha <yevgeniy.kiveisha@intel.com>
* Copyright (c) 2014 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <iostream>
#include <unistd.h>
#include <stdlib.h>
#include "ecs1030.h"
using namespace upm;
struct ECS1030Exception : public std::exception {
std::string message;
ECS1030Exception (std::string msg) : message (msg) { }
~ECS1030Exception () throw () { }
const char* what() const throw () { return message.c_str(); }
};
ECS1030::ECS1030 (uint8_t pinNumber) {
m_dataPinCtx = mraa_aio_init(pinNumber);
if (m_dataPinCtx == NULL) {
throw ECS1030Exception ("GPIO failed to initilize");
}
m_calibration = 111.1;
}
ECS1030::~ECS1030 () {
mraa_result_t error = MRAA_SUCCESS;
error = mraa_aio_close (m_dataPinCtx);
if (error != MRAA_SUCCESS) {
}
}
double
ECS1030::getCurrency_A () {
int sensorValue = 0;
float rLoad = 0;
float volt = 0;
float rms = 0;
for (int i = 0; i < NUMBER_OF_SAMPLES; i++) {
sensorValue = mraa_aio_read (m_dataPinCtx);
volt = (VOLT_M * sensorValue) - 2.5;
volt = volt * volt;
rms = rms + volt;
usleep (DELAY_MS);
}
rms = rms / (float)NUMBER_OF_SAMPLES;
rms = sqrt(rms);
return rms / R_LOAD;
}
double
ECS1030::getCurrency_B () {
double sumCurrency = 0;
for (int i = 0; i < NUMBER_OF_SAMPLES; i++) {
m_lastSample = m_sample;
m_sample = mraa_aio_read (m_dataPinCtx);
m_lastFilter = m_filteredSample;
m_filteredSample = 0.996 * (m_lastFilter + m_sample - m_lastSample);
sumCurrency += (m_filteredSample * m_filteredSample);
}
double ratio = m_calibration * ((SUPPLYVOLTAGE / 1000.0) / (ADC_RESOLUTION));
return ( ratio * sqrt(sumCurrency / NUMBER_OF_SAMPLES) );
}
double
ECS1030::getPower_A () {
return 220.0 * getCurrency_A ();
}
double
ECS1030::getPower_B () {
return 220.0 * getCurrency_B ();
}

97
src/ecs1030/ecs1030.h Normal file

@ -0,0 +1,97 @@
/*
* Author: Yevgeniy Kiveisha <yevgeniy.kiveisha@intel.com>
* Copyright (c) 2014 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#pragma once
#include <string>
#include <math.h>
#include <mraa/aio.h>
#include <mraa/gpio.h>
#define NUMBER_OF_SAMPLES 500
#define ADC_RESOLUTION 1024
#define SUPPLYVOLTAGE 5100
#define CURRENT_RATIO 2000.0
#define HIGH 1
#define LOW 0
#define TRUE HIGH
#define FALSE LOW
namespace upm {
class ECS1030 {
public:
static const uint8_t DELAY_MS = 20000 / NUMBER_OF_SAMPLES; /* 1/50Hz is 20ms period */
static const uint8_t VOLT_M = 5.1 / 1023;
static const uint8_t R_LOAD = 2000.0 / CURRENT_RATIO;
/**
* Instanciates a ECS1030 (current sensor) object
*
* @param pinNumber number of the data pin
*/
ECS1030 (uint8_t pinNumber);
/**
* ECS1030 object destructor, basicaly it close the GPIO.
*/
~ECS1030 ();
/**
* Return currency data for the sampled period
*/
double getCurrency_A ();
/**
* Return power data for the sampled period
*/
double getPower_A ();
/**
* Return currency data for the sampled period
*/
double getCurrency_B ();
/**
* Return power data for the sampled period
*/
double getPower_B ();
/**
* Return name of the component
*/
std::string name() {
return m_name;
}
private:
std::string m_name;
mraa_aio_context m_dataPinCtx;
double m_calibration;
int m_lastSample;
double m_lastFilter;
int m_sample;
double m_filteredSample;
};
}

@ -0,0 +1,8 @@
%module jsupm_ecs1030
%include "../upm.i"
%{
#include "ecs1030.h"
%}
%include "ecs1030.h"

@ -0,0 +1,11 @@
%module pyupm_ecs1030
%include "../upm.i"
%include "stdint.i"
%feature("autodoc", "3");
%include "ecs1030.h"
%{
#include "ecs1030.h"
%}